A product of photosynthesis, ________ is a carbon-based molecule that is the chief source of energy for most organisms.
A. oxygen
B. glucose
C. sucrose
D. All of the answer choices are correct.
Answer: B
Biology & Microbiology
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Describe how changing the ways that land surfaces are used by humans cause changes in water resources.
What will be an ideal response?
Biology & Microbiology
Circulatory systems ____
a. are found in all animals b. result in slow distribution of nutrients and gases c. include one or more hearts d. are always closed systems e. are found in cnidarians and flatworms
Biology & Microbiology
Which plants drop their leaves on an annual basis?
A) annuals B) perennials C) deciduous D) biennials
Biology & Microbiology
Why are pedigrees useful to track genetic disorders?
What will be an ideal response?
Biology & Microbiology